American Thoracic Society Documents 401 Figure 2. Algorithm forinitiating empiric antibi-otic therapy for hospital-acquired pneumonia (HAP),ventilator-associated pneu-monia (VAP), and health-care-associatedpneumonia(HCAP). Figure 2.
One milligram is one thousandth of a gram and one thousand micrograms. A milligram is generally abbreviated as mg. MICROGRAM. One microgram is one millionth of a gram and one thousandth of a milligram. It is usually abbreviated as mcg or ug. Mcg and ug are the same.
On the other hand, the milligram is the long form of the abbreviation âmg.â One mg is equal to 1000 micrograms. This means that a milligram is 1000 times bigger than a microgram. Moreover, a milligram is a thousandth of a gram. The milligram is the more frequently used unit of measurement due to its bigger size.